Oswald has freckles on his pale skin and a cowlick. He has brown hair and hazel eyes. Oswald seems to like his mom more than his dad, as he is always annoyed at how out-of-date he is and will sometimes argue with him. He likes to draw and has a preference science-fiction, using his days at the library to read a series in the genre and an unidentified manga as well as playing on online fantasy game. Oswald also enjoys the old Zendrelix movies (likely a parody of old Godzilla movies).